model-binding | 易学教程

Model Binding to Enums in ASP.NET MVC 3

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问题 I have a method in my controller that accepts an object as an argument and returns a JsonResult. One of the properties on this object is an enum with three possible values. I assumed that when the client passed in an int for that property it would populate the enum, but it doesn\'t, it defaults to 0 and the enum is set to the first of it\'s possible selections. Any suggestions? 回答1: NOTE: This has been resolved in MVC 4. If upgrading to MVC 4 is a viable option for your project then that is

Bind Angularjs to newly created html element dynamically

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问题 I have a tab page with multiple tabs that once clicked on call a service to return some data. Some of that data returns html forms and are very random. I want to collect those values that are entered and send the data via a service back to the server. The problem I have is that I can\'t get the data from the input elements in the html I\'m creating dynamically. I\'ve created a Plunker to show what the issue is. Note that the html value can change at any time so hard-coding the html won\'t

Custom model binder for a property

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问题 I have the following controller action: [HttpPost] public ViewResult DoSomething(MyModel model) { // do something return View(); } Where MyModel looks like this: public class MyModel { public string PropertyA {get; set;} public IList<int> PropertyB {get; set;} } So DefaultModelBinder should bind this without a problem. The only thing is that I want to use special/custom binder for binding PropertyB and I also want to reuse this binder. So I thought that solution would be to put a ModelBinder

How to pass IEnumerable list to controller in MVC including checkbox state?

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I have an mvc application in which I am using a model like this: public class BlockedIPViewModel { public string IP { get; set; } public int ID { get; set; } public bool Checked { get; set; } } Now I have a View to bind a list like this: @model IEnumerable<OnlineLotto.Web.Models.BlockedIPViewModel> @using (Html.BeginForm()) { @Html.AntiForgeryToken() } @foreach (var item in Model) { <tr> <td> @Html.HiddenFor(x => item.IP) @Html.CheckBoxFor(x => item.Checked) </td> <td> @Html.DisplayFor(modelItem => item.IP) </td> </tr> } <div> <input type="submit" value="Unblock IPs" /> </div> Now I have a

error with decimal in mvc3 - the value is not valid for field

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问题 I\'m following [Getting started with ASP.NET MVC 3][1]. And I can\'t add/edit with value of Price = 9.99 or 9,99. It said: \"The value \'9.99\' is not valid for Price.\" and \"The field Price must be a number.\" How to fix this? Model: public class Movie { public int ID { get; set; } public string Title { get; set; } public DateTime ReleaseDate { get; set; } public string Genre { get; set; } public decimal Price { get; set; } } public class MovieDbContext : DbContext { public DbSet<Movie>

ASP.NET MVC 3 JSONP: Does this work with JsonValueProviderFactory?

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问题 Phil Haack has an excellent blog post on how to use JSON, data binding, and data validation. Enter the browser\'s \"same origin policy security restriction.\" and JSONP where you use $.getJSON() to retrieve the content. Is there a built in MVC 3 way to do this, or do I need to follow the advice of posts like this? Can you post content? I ask because my colleague implemented a JsonPfilterAttribute among other things to make this work. It\'s obviously preferred to avoid that if something

How to make ASP.Net MVC model binder treat incoming date as UTC?

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问题 I\'m posting an object to an MVC controller. The object contains a field called StartDt and on the client it is a javascript Date object in local time. When I call JSON.stringify on the object and POST it to the server using jQuery\'s ajax method I can see in Firebug that what\'s being sent to the server is an ISO string like \"1900-12-31T13:00:00.000Z\" which I believe should be the local time in UTC format. When I look at the DateTime field in my controller though, it looks like its back to

How does MVC 4 List Model Binding work?

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问题 If I want a set of inputs in a form to bind to a List in MVC 4, I know that the following naming convention for input name attributes will work: <input name=\"[0].Id\" type=\"text\" /> <input name=\"[1].Id\" type=\"text\" /> <input name=\"[2].Id\" type=\"text\" /> But I am curious about how forgiving the model binder is. For example, what about the following: <input name=\"[0].Id\" type=\"text\" /> <input name=\"[3].Id\" type=\"text\" /> <input name=\"[8].Id\" type=\"text\" /> How would the

MVC 3 Model Binding a Sub Type (Abstract Class or Interface)

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问题 Say I have a Product model, the Product model has a property of ProductSubType (abstract) and we have two concrete implementations Shirt and Pants. Here is the source: public class Product { public int Id { get; set; } [Required] public string Name { get; set; } [Required] public decimal? Price { get; set; } [Required] public int? ProductType { get; set; } public ProductTypeBase SubProduct { get; set; } } public abstract class ProductTypeBase { } public class Shirt : ProductTypeBase {

Remote Validation for LIST of MODELs

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问题 I used the following tutorial: http://msdn.microsoft.com/en-us/library/gg508808%28VS.98%29.aspx And everything seemed fine, but in my case, string Username always comes back null. After tonnes of research, I found everyone discovered BIND Prefixes. That would be great in many circumstances, but not this one. I should note all properties and names line up, however in my for loop, the EditorFor creates a [i].Username field and this doesn\'t map to any model property. QUESTION: I think I want to